jp:
It’s already platted for 6 x 25-ft lots. Given that, and given that the plot has alley access, path of least resistance is 6 single family homes with detached alley-access garages on 25-ft frontage. Probably priced in the high $400’s, low $500’s. They could re-plat for 4 x 33-ft (I think this results in a more well-proportioned house), but it makes the economics trickier.
HCAD currently lists the owner as Bastian Builders, which has done mostly single-family.

Drove past the 23rd St site on the way home. One house already framed: single family on 25-ft frontage. No front-facing garage, so it will eventually have alley-access detached garage. Already marked as sold.
Listings on HAR indicate these are 2400 s.f. on 3400 s.f. lots, priced in the mid $500s.

What a pleasant oasis that was. For that reason alone it had to go, I suppose. It seems like when you’ve lost most of your little pieces of green space like that, and trees, eventually, there seems a more obvious need for a park in an area, which, ironically, then requires “planning” and execution by local government, and maybe even an exercise of eminent domain powers. And the planting of sad little government trees.
But, on the bright side, a victory for those who are so threatened by, in their preferred phrase, “preserving things in amber.” (Jurassic Park nightmares?)
If they live nearby, even better — they will be able to savor their success, feel the vibrancy, every time they pass the new townhomes.